Overview
The PCA9601DP/S911118, produced by NXP USA Inc., is a dual bidirectional bus buffer designed to isolate I²C-bus capacitance. This component is particularly useful in applications requiring the extension of I²C-bus lines, enabling the driving of long buses with high capacitance. It operates at speeds up to 1 MHz and is compatible with Fast-mode Plus (Fm+) specifications, making it suitable for a variety of I²C-bus and similar bus configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | TSSOP8 (MSOP8) |
| Supply Voltage (VCC) Range | 2.5 V to 15 V |
| Maximum Operating Bus Voltage | 15 V |
| Typical Operating Supply Current | 5 mA |
| LOW-level Input Voltage on I²C-bus (SX/SY side) | 0.5 V over -40 °C to +85 °C |
| LOW-level Output Voltage on I²C-bus (SX/SY side; 3 mA sink) | 0.74 V (max.) over -40 °C to +85 °C |
| Temperature Range | -40 °C to +85 °C |
| Maximum Bus Speed | 1 MHz |
| ESD Rating HBM per JESD22-A114 | > 3500 V |
Key Features
- Dual bidirectional bus buffer for isolating I²C-bus capacitance.
- Operates at speeds up to 1 MHz and compatible with Fast-mode Plus (Fm+) specifications.
- Temperature-stabilized logic voltage levels at the SX/SY interface, making it suitable for interfacing with buses that have non-I²C-bus-compliant logic levels such as SMBus, PMBus, or TTL logic levels.
- Supports long distance point-to-point or multipoint architectures.
- Interfaces with opto-couplers to provide opto-isolation between I²C-bus nodes.
- Typical propagation delays of less than 100 ns.
Applications
- Interface between I²C-buses operating at different logic levels (e.g., 5 V and 3 V or 15 V).
- Interface between I²C-bus and SMBus (350 μA) standard or Fm+ standard.
- Simple conversion of I²C-bus SDA or SCL signals to multi-drop differential bus hardware.
- Opto-isolation between I²C-bus nodes.
- Long distance point-to-point or multipoint architectures.
Q & A
- What is the PCA9601DP/S911118 used for?
The PCA9601DP/S911118 is used to isolate I²C-bus capacitance, allowing for the extension of I²C-bus lines in point-to-point or multipoint applications. - What is the maximum operating bus speed of the PCA9601DP/S911118?
The maximum operating bus speed is up to 1 MHz. - What are the compatible bus standards for the PCA9601DP/S911118?
The component is compatible with I²C-bus, SMBus, PMBus, and TTL logic levels. - What is the typical operating supply current of the PCA9601DP/S911118?
The typical operating supply current is 5 mA. - What are the package options available for the PCA9601DP/S911118?
The component is available in TSSOP8 (MSOP8) packages. - What is the ESD rating of the PCA9601DP/S911118?
The ESD rating is greater than 3500 V according to JESD22-A114. - Can the PCA9601DP/S911118 be used for opto-isolation?
Yes, it can be used to interface with opto-couplers for opto-isolation between I²C-bus nodes. - What is the temperature range for the PCA9601DP/S911118?
The operating temperature range is -40 °C to +85 °C. - What are the typical propagation delays of the PCA9601DP/S911118?
The typical propagation delays are less than 100 ns. - Can the PCA9601DP/S911118 handle high capacitance buses?
Yes, it can handle buses with capacitance up to 4000 pF.
